OracleJSP Support for JavaServer Pages Developer's Guide and by Wright B.

By Wright B.

This record is meant for builders attracted to utilizing OracleJSP to create internet functions according to JavaServer Pages expertise. It assumes that operating net and servlet environments exist already, and that readers are already conversant in the following:■ normal internet technology■ common servlet know-how (some technical historical past is supplied in Appendix B)■ how you can configure their internet server and servlet environments . ■ HTML■ Java■ Oracle JDBC (for JSP functions gaining access to an Oracle database)■ Oracle SQLJ (for JSP database purposes utilizing SQLJ)"

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OracleJSP Support for JavaServer Pages Developer's Guide and Reference

This record is meant for builders drawn to utilizing OracleJSP to create net functions in line with JavaServer Pages expertise. It assumes that operating net and servlet environments exist already, and that readers are already accustomed to the following:■ basic net technology■ normal servlet know-how (some technical heritage is supplied in Appendix B)■ easy methods to configure their internet server and servlet environments .

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JSP tag libraries and tag library description files are introduced later in this chapter, in "Tag Libraries" on page 1-23, and discussed in detail in Chapter 7, "JSP Tag Libraries and the Oracle JML Tags". Scripting Elements JSP scripting elements include the following categories of snippets of Java code that can appear in a JSP page: ■ declarations—These are statements declaring methods or member variables that will be used in the JSP page. %> declaration tags to declare a member variable or method.

You can use them within the HTML code of a JSP page to set up conditional branches or a loop, for example. %> scriptlet tags, using normal Java syntax. equals("")) { %> I don’t know you. getNewName() %>. <% } %> Three one-line JSP scriptlets are intermixed with two lines of HTML (one of which includes a JSP expression, which does not require a semi-colon). Note that JSP syntax allows HTML code to be the code that is conditionally executed within the if and else branches (inside the Java brackets set out in the scriptlets).

Actions—These create objects or affect the output stream in the JSP response (or both). This section introduces each category, including basic syntax and a few examples. 1. There are XML-compatible alternatives to the syntax for JSP directives, declarations, expressions, and scriptlets. See "XML-Alternative Syntax" on page 5-9. Notes: Directives Directives provide instruction to the JSP container regarding the entire JSP page. This information is used in translating or executing the page. The basic syntax is as follows: <%@ directive attribute1="value1" attribute2="value2"...

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